Induction apparatus for heating an oil reservoir, in particular a heavy-oil reservoir

摘要

The invention relates to an induction apparatus (10) for heating a heavy-oil reservoir (100), having at least one casing pipe (20) and at least one inductor (30) which is arranged within the casing pipe (20), wherein an intermediate space (40) is formed between the inductor (30) and the casing pipe (20), wherein a large number of centring means (50) are arranged in the intermediate space (40) over the axial profile of the induction apparatus (10), said centring means each making contact both with the casing pipe (20) and the inductor (30), wherein the intermediate space (40) is filled with a filling material (60).